user
Instruction: Calculate the sum of the first 100 positive integers and explain the process in 4 sentences

assistant
The sum of the first 100 positive integers is 5050. This can be calculated by making use of the arithmetic sequence formula for sum of n numbers, where n=100. The formula is Sn=n/2(a1+an), where a1 is 1 and an is 100. The sum is then equal to 5050.